Home / 1,313,645.42-1,812,850.80-769,651.04

Finding the Fourth Proportional to 1,313,645.42, 1,812,850.80 and 769,651.04

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Solution

The fourth proportional to 1,313,645.42, 1,812,850.80 and 769,651.04 is: 1,062,130.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,645.42 : 1,812,850.80 = 769,651.04 : x
  2. Step 2: Convert to fraction form
    1,313,645.42/1,812,850.80 = 769,651.04/x
  3. Step 3: Cross multiply
    1,313,645.42x = 1,812,850.80 × 769,651.04
  4. Step 4: Simplify right side
    1,313,645.42x = 1,395,262,503,584.83
  5. Step 5: Solve for x
    x = 1,395,262,503,584.83/1,313,645.42
  6. Step 6: Final answer
    x = 1,062,130.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.